Bitcoin is now a proven system. Has been developing very successfully for 7-8 years. Large financial institutions are investigating blockchain technology.
I do not think a system that will revolutionize innovation will die.
What will die for what reasons?
Do you have any logical arguments for this? Is the alternative going to be another currency? Why do people stop using bitcoin when have no reason?
The world is constantly changing. Bitcoin is already used in everyday life. So, technically and practically, there is nothing that hinders the use of bitcoin.
They also do money laundering with other currencies. Money laundering was done before Bitcoin.
Bitcoin does not die for these reasons. Bitcoin just needs more advertising.